2557878985132 has 48 divisors (see below), whose sum is σ = 4610832387840. Its totient is φ = 1241066354112.

The previous prime is 2557878985097. The next prime is 2557878985133. The reversal of 2557878985132 is 2315898787552.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2557878985133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13950313 + ... + 14132479.

It is an arithmetic number, because the mean of its divisors is an integer number (96059008080).

Almost surely, 2^{2557878985132} is an apocalyptic number.

It is an amenable number.

2557878985132 is a deficient number, since it is larger than the sum of its proper divisors (2052953402708).

2557878985132 is a wasteful number, since it uses less digits than its factorization.

2557878985132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182950 (or 182948 counting only the distinct ones).

The product of its digits is 338688000, while the sum is 70.

The spelling of 2557878985132 in words is "two trillion, five hundred fifty-seven billion, eight hundred seventy-eight million, nine hundred eighty-five thousand, one hundred thirty-two".